photokinesis

[ foh-toh-ki-nee-sis, -kahy- ]

noun

, Physiology.

1. movement occurring upon exposure to light.

photokinesis

/ -kaɪ-; -kaɪ-; ˌfəʊtəʊkɪˈniːsɪs; ˌfəʊtəʊkɪˈnɛtɪk /

noun

1. biology the movement of an organism in response to the stimulus of light

Derived Forms

• photokinetic, adjective
• ˌphotokiˈnetically, adverb

Other Words From

• pho·to·ki·net·ic [foh-toh-ki-, net, -ik, -kahy-], adjective

Word History and Origins

Origin of photokinesis¹

First recorded in 1900–05; photo- + -kinesis